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Finding the Fourth Proportional to 557,250.75, 768,999.24 and 302,603.76

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Solution

The fourth proportional to 557,250.75, 768,999.24 and 302,603.76 is: 417,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,250.75 : 768,999.24 = 302,603.76 : x
  2. Step 2: Convert to fraction form
    557,250.75/768,999.24 = 302,603.76/x
  3. Step 3: Cross multiply
    557,250.75x = 768,999.24 × 302,603.76
  4. Step 4: Simplify right side
    557,250.75x = 232,702,061,461.14
  5. Step 5: Solve for x
    x = 232,702,061,461.14/557,250.75
  6. Step 6: Final answer
    x = 417,589.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.